Affiliation:
1. Department of Anatomy, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, Poland
Abstract
IntroductionVariations within musculocutaneus nerve (MCN) are very frequent. Such cases should be discussed extensively to reduce the risk of iatrogenic damage during surgery.AimIn this paper, we wanted to present the unusual variability within the brachial plexus, which is the double MCN.Case studyWe present a case of accesory MCN found during the cadaveric dissection.Results and discussionIn this paper we encountered two musculocutaneous nerves, of which MCN proper runs as standard innervating the biceps brachii and the coracobrachialis muscle, while MCN accessory extending distally from MCN proper and innervates the brachialis.ConclusionsThe case analysed by us is rare in the literature. Brachial plexus variations are very common and clinically important.
Publisher
Collegium Medicum, University of Warmia and Mazury